Collar



FIG. 1 is a top perspective view of a collar showing our new design;

FIG. 2 is a front end elevational view thereof;

FIG. 3 is a rear end elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side elevational view thereof; and,

FIG. 7 is a left side elevational view thereof.

The dashed lines in the views represent stitching. 

CLAIM The ornamental design for a collar, as shown and described. 